Hydrothermal synthesis of ZnO nanowires for photovoltaic application

National audiencePV technologies have emerged as alternative to the first (silicon) and second generation (semiconducting inorganic materials) solar cellsexpecting to lead to less expensive devices. Perovskite (organometallic), all organic (OPV) and organic/inorganic (called hybrid PhotovoltaicHPV) are developed specifically for nomad applications. HPV emerging materials have a special interest because they combine the low costand large scale production advantages of polymers with the charge carrier mobility and the chemical stability of the inorganic materials. Theactive layers of hybrid or organic PV cells are always made with the combination of two distinct components, namely, the electron-accepting(acceptor A) and the hole-accepting (donor D) materials. The nature of these materials has already been varied a lot, with π-conjugatedpolymers, fullerene C60 or C70 derivatives (OPV technology) or organometallic (Perovskite technology), and ZnO thin layers or ZnO nanowires.This work aims at developing of semitransparent architectured tandem 2.5/3 D hybrid photovoltaic solar cells using semitransparentmonolithic (not two separate cells interconnected) tandem cell based on nano-architectured ZnO directly growth on the substrate byhydrothermal route. A nano-structuration of D or D/A and ZnO nanowires close to the ideal interpenetrating D/A system is targete